Wordpress Site URL name change crashed site

I needed/wanted to change the website address name... So I typed the new name into Wordpress Address URL and Site Address URL and after I did that it seemed to destroy my ability to open my website or even access the ADMIN area to correct it... I'm at a loss because I have no idea what I'm doing (obviously!).

Re: Wordpress Site URL name change crashed site

As WordPress is a completely web-based application it would need the proper URL in order to work, even the admin area. Though there are a few alternate methods of changing the URL if you are locked out.